Thank you for your interest in volunteering for this race! The Age-Handicapped 4-Miler race is not possible without the help of volunteers – your time and energy are greatly appreciated. The race will start at 8:00 am at the Carderock Recreation Area, Maryland. No street address available since it’s in a National Park. To access Google directions, click here or use the following address: Carderock Recreation Area, Chesapeake & Ohio Canal National Historic Park, Potomac, Maryland 20854.